Article brought to us by Legacy Online School website Surviving Christmas sniffles: expert highlights common causes of festive allergic reactions and how to deal with them Key Points: The holiday season—full of twinkling lights, cozy family gatherings, and the smell of fresh-baked cookies. But for some children, all that holiday cheer can come with a side of sneezes!  “Winter allergies may not be as obvious as pollen-induced springtime sniffles, but they’re just as effective at killing the mood,” says Vasilii Kiselev, CEO and co-founder of Legacy Online School, which provides high-quality online education for students up to 12th grade. Here, Vasilii gives his top tips to help kids dodge the…